Massive performance issues - no clue how to fix

[ludacris 0]

Hello everyone, 

 

I am having massive issues with embys performance and I have no idea on how to fix this. 

 

I've ripped all my blurays, some of the rips are h264, some are h265. 

 

The servers hardware is: 

Intel Xeon E5-1620 v2 (3.7Ghz) 

16GB Ram

2x2 TB HDD (RAID1) 

with 250 mbps upspeed. 

 

I currently have 9 users where usually max 4 are online at the same time. 

Streaming in my homenetwork from an RaspberryPi 4 with 2GB Ram works somewhat okayish (4K is not possible, 1080p runs fine) 

It seems as if emby is always transcoding my source files because the bitrate exceeds the bandwidth. The file I just tested has a bitrate of 7.480kbps according to emby which can not be exceeding the available bandwidth (250mbps up at the server location, 500mbps down at my house). 
 

Has anyone got an idea how to fix this except by reencoding the whole library to potato quality? 

 

Anyone got an idea? 

 

Edit: I also just noticed that 4K Files are always transcoded to h264 on the fly - why so? My hardware supports h265 playback

Edited March 16, 2020 by ludacris

[pwhodges 2014]

Try setting the bandwidth and quality that each client will accept explicitly.  This needs to be set in each client.  The default "Auto" setting doesn't necessarily give you anything like what's possible.

 

Supporting h265 requires the software to be right as well as the hardware.  For instance, browsers will not do it, and some clients might not get the chance because they don't handle .mkv files for instance (browsers again).

 

You can see the reason for transcoding by bringing up the "stats for nerds" option, which is in the settings menu of the client while playing.  Note that whatever the reason for transcoding, the transcoding will always be to h264, not to h265.

 

Paul

[ludacris 0]

Well all of the users are mostly using their browser to stream. I am using the Emby app for Fire TV or for my LG TV.

 

Would it be better, if all files are in h264? 

[pwhodges 2014]

For the people using browsers, yes, h264 in mp4 with aac audio is the best bet for avoiding transcoding, and that's the format that transcoding generates..

 

But do check out the other things I mentioned.

 

Paul

Edited March 17, 2020 by pwhodges

[Luke 42086]

If we can look at some examples we'll be able to provide better advice.

How to report a media playback issue.

Thanks !